Toy aeroplane



March 31, 1931. H. s. v. RYDELL TOY AEROPLANE Filed June 2o, 192e 2 sheets-sheet 1 0V 7. A a wx@ Aw.- -1.6. llll,L Vn l/kMl ATTORN EYJ' March 31, 1931. `M s v RYDELL 1,798,706

TOY AEROPLANE FiledJune 2o, 1928 2 sheets-sheet 2 INVENTOR ATTORNEYJ' Patented Mar. 31, 1931 UNITED STATES PATENT OFFICE HAROLD S. V. RYDEITL, OF BROOKLYN, NEW YORK, ASSIGNOR TOTHE UNITED: STATES PRINTING & LITHOGRAPH COMPANY, 0F BROOKLYN, NEW' YORK, A CORPORATION OF OHIO TOY AEROPLANE Application led .Tune 20,

My invention relates to toy aeroplanes, usually made of paper, which when thrown forwardly by hand will iy a short distance through the air and generally loop the loop.

y invention has for its object to provide a toy aeroplane of this character which is easily and cheaply made, can be formed of a single sheet of stiff paper, can be easily folded for. use or unfolded flat for convenient transportation, and, when properly thrown, will fly through the air and loop the loop.

To this end, my invention consists, in its present preferred embodiment, of a sheet of carboard or stiff paper cut to form a blank of roughly T-form, the tail of the T being folded upward along a central longitudinal line to form a stifl'ened fuselage and the crosshead of the T being folded backward transversely and inserted in slits in the fuselage to form the bow and wing of the aeroplane as hereinafter fully described and pointed out in the claims.

Reference is to be had to the accompanying drawings forming part of this application in which like parts are designated by the same numbers in all the figures.

Figure 1 represents a blank from which a toy aeroplane may be formed according to my invention Figure 2 is a side view of the completed aeroplane so formed.

Figure 8 is a front end view of the same.

Figure a is a perspective view showing the method of forming the aeroplane from the blank.

In the specific performance of my invention illustrated in the drawings, I cut preferably from a single sheet of cardboard or stiff paper a blank, as shown in Figure 1, in roughly T- shape, the tail portion l of which is narrowest near the middle of its length, and widens gradually to opposite points 5 5, spaced from its rear end, beyond which the opposite edges are parallel to its length. Forward of the medial narrow portion the tail portion widens gradually to opposite points 6 6, and then widens more abruptly to opposite points 7 7, whence the side edges converge to points 8 8, where the blank is cut to form opposite 192s. serial No; V286,800.

slits 9 9 converging from the points 8 8, toward the tail.

From the points 8 8, the side edges of the blank diverge slightly to opposite points 10 10, where they join the cross-head 11 of the T, the forward transverse edge 12 `of which is substantially parallel to the rear edge 13.

The end edges M M, o-f the cross-head 11 converge forwardly and in the middle of the forward edge portion of the cross head 11 is cut a short longitudinal slit 15.

In forming the aeroplane from this blank, as illustrated in Figures2,v3, and 4, the tail portion 4 is folded upwardly along a medial longitudinal line 16' extending from the end of the tail to a point 17 forward of the rear ends of the slits-9, to form the fuselage.

The tail portion forward of the point 17 is folded downwardly on lines 26 converging forwardly from the inner ends of the slits 9 to the point 17, and upwardly on lines 18, diverging forwardly from the point 17 to points19 on opposite sides of the tail portion and on lines 20 converging from the points 19 to a point 21 forward of the point 17.

The tail portion is folded downwardlyV on a line 22 extending transversely across the tail portion at the point 21 and also upwardly on lines 23, diverging from the point 21jto points near the points 10 previously referred to on opposite sides of the tail portion. Y

The head 11 is then folded backward on the lines and at the points just referred to and its forward edge 12 inserted4 in the slits 9, as shown in Figures 2 and 8, the projecting portions 24: outside the slits 9, being pressed together and their forward edges inserted in the slit 15 in the head l1, which binds them together so that they form anv upwardly projecting, longitudinal guiding fin'.

The point 21 thus forms the bow of the Y aeroplane., and the reversed head 11'the plane or wing of the aeroplane which is fixed in position by its insertion in the slits 9.l

- It will be understood that the finished aeroplane formed by folding the plane in the manner above indicated has the fuselage portion presenting a point or apeX at the forward end of the aeroplane, the sides of the f fuselage portionv being constituted byr reioo entrant dihedral angular surfaces and the underneath portion of the. fuselage being formed with a polyhedral angular Contour as clearly illustrated in Figure 2.

The folds on the lines 2l, 22, and 23 diverging rearwardly from the bow-point 21, act as guiding and steadying fins for the aeroplane, and the upwardly diverging lateral portions of the tail portion at the rear of lining a forward apex, and being folded on its lower face to define a polyhedral angle symmetrical with the longitudinal median line of said aeroplane.

In testimony whereof, I affix my signature.

y HAROLD S. V. RYDELL.

the aeroplane act as longitudinal guiding and steadying rudders or fins.

When the aeroplane is thus folded and completed, it can be thrown by hand and will fly a considerable distance, when seized between the fingers at the point marked 25 beneath the wing, and will loop the loop. A light weight is preferably fastened at the bow to make the action of the aeroplane more positive.

By reversing the folding and assembling process described, the aeroplane can be restored to the original flat blank form for convenient packing and transportation.

It is evident that many changes may be made in the details of this specific embodiment of my invention without departing from its boundaries as defined by the following claims.

I claim as my invention:

1. A toy aeroplane formed of a roughly T-shaped sheet comprising a tail portion, folded upward along a medial longitudinal line, a head portion, a fuselage formed be tween the head portion and the tail portion by folding the intermediate portion between the said head portion and tail portion on transverse and diagonal lines radiating from a central point, the head portion folding back on said fuselage portion, means carried by said head and fuselage portions for locking the head portion in folded position.

2. A blank for forming a toy aeroplane consisting of a roughly. T-shaped sheet having a tail and head portion, wings forming a part of said head portion and ns formed by slits in said tail portion, said tail portion foldable upward along ka central longitudinal line, said head portion foldable on a line in front of said fins so as to enter said slits and lock said fins in upright position.

3. A toy aeroplane formed of a roughly T-shaped sheet and dierentiatedy into a wide forward wing portion, a narrow relatively elongated tail portion and an intermediate fuselage portion, the tail portion being longitudinally folded, the sides of the fold coming together adjacent the front of the tail portion, said fuselage portion being bent back upon itself so that the rearward edge of the wing comes adjacent the front of the tail portion, said wing at the adjacent part of said tail portion being formed with a slot, by which the tail and wing are interengaged, said fuselage 'portion' being formed forwardly with re-entijantly folded parts deloo 

